Managing Invasive Weeds in Borrego Springs: Sahara Mustard and Volutaria Chris McDonald PhD Sahara mustard and Volutaria are two invasive weeds that are spreading in the Borrego region. Sahara mustard has been in Southern California for nearly a century and is a widespread problem, while Volutaria is a newer introduction and is confined to just a few locales. These two species pose a threat to desert wildlife, wildflowers and tourism. Many people have been working to contain Volutaria before it spreads across the California Desert as well as reduce local Sahara mustard populations. Learn about how to identify and manage these species, how quickly they are spreading, and how you can help make Borrego Springs a better place for yourself, your neighbors, and for the environment.

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